I have. Many times.Trolldor said:Although I've never heard a girl shout 'you ******' over the microphone.
Mainly it's myself doing so.
I'm not the best of players, but since I've only been seriously gaming since about mid '09, I feel that my skill level compared to time spent playing is quite good; I can hold my own pretty well against most guys. I usually haunt games like left 4 dead, team fortress 2, medal of honor and killing floor, but I do dabble into the rpg genre as well.
There are a lot more bad male players than good, and the same with girls. Its just that the number of girls vs. guys means that you don't know what you will encounter.